smtp auth is still required, the spammer would need to know password also

----- Original Message -----
From: "Noel J. Bergman" <[EMAIL PROTECTED]>
To: "James Users List" <[EMAIL PROTECTED]>
Sent: Tuesday, October 15, 2002 2:09 PM
Subject: RE: transport processor


> JR,
>
> > i am considering disabling verifyidentity and making
> > the folowing changes to the transport processor:
>
> <!-- this begins my modification to the transport processor  -->
>     <mailet
>
match="SenderIs=user1@localhost,user2@localhost,user3@localhost,user3@otherh
> ost"
>        class="RemoteDelivery">
>             <outgoing> file://var/mail/outgoing/ </outgoing>
>             <delayTime> 21600000 </delayTime>
>             <maxRetries> 5 </maxRetries>
>     </mailet>
>
> The problem is that anyone can forge the sender information.  As soon as a
> spammer seems an e-mail coming from your server, they can come right back
to
> it, forge the user name, and ... voila! ... you are an Open Relay.  Do not
> pass GO, go directly to DNS RBL jail.
>
> --- Noel
>
>
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